Concepedia

Josef Breimair

JB

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Publications

6

Citations

144

H-Index

6

Active since

1990

Affiliations

Ludwig-Maximilians-Universität München(Current)

Josef Breimair is an author at Ludwig-Maximilians-Universität München specializing in chemistry, inorganic chemistry, and chemical engineering.

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Publications per year

1990–1991

6

Publications

6

Kohlenwasserstoffverbrückte Metallkomplexe, XXII<sup>1)</sup> Addition von anionischen Fischer‐Carben‐Komplexen an koordinierte ungesättigte Kohlenwasserstoffe unter C – C‐Kupplung

Josef Breimair, Torsten Weidmann, Barbara Wagner et al. · Chemische Berichte · 1991 · 35 citations

, , +11

Hydrocarbon‐bridged Metal Complexes, XXI. – Addition of Tetracarbonylosmate and ‐ruthenate to Coordinated Unsaturated Hydrocarbons: Trinuclear Complexes with two σ,α‐Allyl, Methylallyl, Cyclohexadiene, Cycloheptadiene, Cyclohexadienyl, Cycloheptatrien, and “Thiophene” Bridges The addition of organometallic nucleophiles [M(CO)<sub>4</sub>]<sup>2‐</sup> (M = Os, Ru) to [(Cp)(ON)(OC)Mo(allyl)]<sup>+</sup>, [Cp(OC)<sub>2</sub>Mo(butadiene)]<sup>+</sup>, [(OC)<sub>3</sub>Fe(cycloheptadienyl)]<sup>+</sup>, [(OC)<sub>3</sub>Fe(cycloheptadienyl)]<sup>+</sup>, [(OC)<sub>3</sub>Mn(benzene)]<sup>+</sup>, [(OC)<sub>3</sub>Mn(thiophene)]<sup>+</sup>, [(OC)<sub>3</sub>‐Mo(cycloheptatrienyl)]<sup>+</sup> leads to the heterotrimetallic η<sup>1</sup>:η<sup>2</sup>‐, η<sup>1</sup>:η<sup>3</sup>‐, η<sup>1</sup>:η<sup>4</sup>‐, η<sup>1</sup>:η<sup>5</sup>‐, η<sup>1</sup>:η<sup>6</sup>‐hydrocarbon‐bridged complexes 1 ‐ 7. The structures of <i>cis</i>‐(OC)<sub>4</sub>Os[(μ‐η<sup>1</sup>:η<sup>4</sup>‐C<sub>7</sub>H<sub>9</sub>)Fe(CO)<sub>3</sub>]<sub>2</sub> (4), <i>cis</i>‐(OC)<sub>4</sub>Os[(μ‐η<sup>1</sup>:<sup>5</sup>‐C<sub>6</sub>H<sub>6</sub>‐Mn(CO)<sub>3</sub>]<sub>2</sub> (6), and <i>cis</i>‐(OC)<sub>4</sub>Os‐[μ‐η<sup>1</sup>:η<sup>6</sup>‐C<sub>7</sub>H<sub>7</sub>‐Mo(CO)<sub>3</sub>]<sub>2</sub> (7b) have been determined by X‐ray analysis. The fluxional behaviour of 6 in solution has been studied in a temperature range from – 70 to +60°C. The comparison of observed and calculated <sup>1</sup>H‐NMR data indicates a 1,2‐shift mechanism (ΔG<sup>+</sup> = 49 kJ/mol).

Burkhard Niemer, Josef Breimair, Thomas Völkel et al. · Chemische Berichte · 1991 · 32 citations

Nucleophile Addition von Carbonylmetallaten an kationische Alkin‐Komplexe [CpL<sub>2</sub>M(η<sup>2</sup>‐RC≡CR)]<sup>+</sup> (M = Ru, Fe): μ‐η<sup>1</sup>:η<sup>1</sup>‐Alkin‐verbrückte Komplexe

Josef Breimair, Manfred Steimann, Barbara Wagner et al. · Chemische Berichte · 1990 · 28 citations

, , +11

Kohlenwasserstoffverbrückte Komplexe XX Nucleophile Addition von Carbonylmetallaten an kationische Hexadienyl‐, Cycloheptadienyl‐, Cycloheptadienyl‐ und Cyclooctadienyl‐Komplexe von Eisen und Ruthenium: Heterodimetall‐Komplexe mit η<sup>1</sup>:η<sup>4</sup>‐C<sub>6</sub>‐, ‐C<sub>7</sub>‐ und ‐C<sub>8</sub>‐Kohlenwasserstoffbrücken

Burkhard Niemer, Josef Breimair, Barbara Wagner et al. · Chemische Berichte · 1991 · 23 citations

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Kohlenwasserstoffverbrückte Metallkomplexe, XVIII. Heterometallische Ethylen‐verbrückte Komplexe (OC)<sub>5</sub>ReCH<sub>2</sub>CH<sub>2</sub>Mn(CO)<sub>5</sub>, (OC)<sub>5</sub>ReCH<sub>2</sub>CH<sub>2</sub>Ru(CO)<sub>2</sub>Cp, (OC)<sub>5</sub>ReCH<sub>2</sub>CH<sub>2</sub>Os(CO)<sub>4</sub>CH<sub>2</sub>CH<sub>2</sub>Re(CO)<sub>5</sub> und (OC)<sub>5</sub>ReCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>Os(CO)<sub>4</sub>Os(CO)<sub>4</sub>(CO)<sub>4</sub>Os(CO)<sub>4</sub>CH<sub>2</sub>CH<sub>2</sub>Re(CO)<sub>5</sub>

Josef Breimair, Burkhart Niemer, Klaus Raab et al. · Chemische Berichte · 1991 · 15 citations

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